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I designed some flanges and had local shop water-jet them for me. I have some mandrel bent tubing on order and should start fabrication shortly. 304L stainless steel.

Does anybody know, are the stock exhaust headers the same on all SC400s, LS400s and GS400s? I'm designing a set for my '92 SC that will replace the headers only, keeping the cats, and was wondering if they'll work on other cars as well.

I'm looking for a set of stock cats, whole, gutted or melted. I just need 'em to make a jig to weld up my own headers. I have a set of manifolds already, just need the cats. I'm located in Iowa, a local set would be great, but I will pay shipping if I need to.

I just put these on today. Fitment is great. I'm running Nitto 555 tires, 245/40 ZR-18 which are the stock size for the 430 and only put my speedo off by 0.1mph at 60, almost perfect.

Anyone know the thread size for the O2 sensor bungs on the SC400? I'm planning on making my own SS exhaust.

The turbo I got on ebay came in today. Paid $50 for it plus $40 shipping. It's a Holset turbo off of a 2007 Dodge 3500 truck with a 6.7 liter engine. It appears to be in good shape. Spins free and zero shaft play. For once it appears I got a good deal on a good part on ebay.

I was just thinking about how people say the 1UZ heads could use much improvement and thought about how good the 3S-GTE heads are and was wondering if it could be done (for turbo application). Anyone looked into this at all? I haven't found any measurements yet, just a couple pictures. Aside...

I've circled some areas in red that I'm thinking of grinding down to make the chamber more dome shaped. This will also add a few cc's to the head and lower the compression ratio, which is ok since I'm going to turbo it. This will also take out the sharp corners and reduce the likelyhood of...

I'm working on designing my own ITB set up for the 1UZ and considering selling em if it works as well as I think it will. I'm trying to make it so it will be streetable and I think I've solved that problem. My first one will go on an engine with a stand alone ECU, but I may do one to work with...

Selling my MR2 to fund my V8 project. Click Here Thanks

I working on designing an independent throttle body intake and I want to know anyone's experience with them and what the drawbacks are to using an ITB setup. I want to address these problems in my design. I've never driven a car with em so I need some first hand input. I've heard...

I just got a 1UZ from a '94 SC400, 175k miles, had record of the 90k mile service. I've already got it partially disassembled, down to a long block. I don't plan on pulling the heads, crank or pistons. That's just a little more than I think I need to do. Everything appears to be in good...